Basecamp Planner › Recreation.gov › Mount Hood
When can I book Trillium Lake?
Trillium Lake Campground · OR · Recreation.gov
A guide, not a guarantee: confirm on the official reservation site before you plan around it.
For your trip
Next release: Mon, Nov. 23, 2026 at 7 a.m. Pacific, for arrivals through May 23, 2027; after that, a 6-month rolling window.
How booking works here
Recreation.gov: Each campground sets its own booking window. We copy it from the campground’s Seasons & Fees tab.
“Booking windows are determined by each individual facility.”
Source: Recreation.gov FAQ · checked Nov. 5, 2026Posted on Recreation.gov for this campground
Booking window
6-month rolling
Next release
Mon, Nov. 23, 2026 at 7 a.m. Pacific, for arrivals through May 23, 2027
Season
May 23, 2027 – Oct. 13, 2027
“Individual sites at this campground operate on a 6-month rolling basis. On Nov 23, 2026 at 07:00 AM PST, availability will be released through May 23, 2027.”
Source: Recreation.gov: Trillium, Seasons & Fees · checked Nov. 5, 2026Phone reservations: 1-877-444-6777. Something here look wrong or out of date? Tell us.